Extracting method of melaleuca alternifolia tea tree essential oil

Abstract

The invention discloses an extracting method of melaleuca alternifolia tea tree essential oil, and belongs to the technical field of plant extraction. The method includes the following steps of selecting fresh melaleuca alternifolia tea tree stems and leaves for cleaning and smashing; mixing a certain amount of different-polarity solvent according to a certain ratio to obtain a mixed solvent, andwetting the tea tree steams and leaves for standing for a certain period of time; conducting heating, backflowing, extracting and filtering on the standing mixture; decompressing and distilling the filtered liquid mixture for recovering the solvent and tea tree essential oil; conducting GC-MS analysis on the obtained melaleuca alternifolia tea tree essential oil and determining the content of a main active component (terpine-4 alcohol) in the obtained tea tree essential oil. The method is simple, the tea tree essential oil is extracted from melaleuca alternifolia to the maximum extent, production benefits are directly improved, the obtained tea tree essential oil is extremely low in water content, and storage is facilitated.

Description

technical field [0001] The invention belongs to the field of essential oil extraction technology, and in particular relates to an extraction method of Melaleuca alternifolia tea tree essential oil. Background technique [0002] Melaleuca alternifolia, also known as tea oil tree, is the main raw material of tea tree essential oil. The tea tree essential oil extracted from the fresh branches and leaves of Melaleuca alternifolia is a natural oil, rich in pine oil, lemon olein, and eucalyptol , anisole, etc., have the effects of sterilization and anti-inflammation, astringent pores, treatment of colds, coughs, rhinitis, asthma, improvement of dysmenorrhea and genital infections. Suitable for oily and acne-prone skin, it can treat purulent wounds and burns, sunburn and dandruff. Widely used in many fields such as skin care products, cosmetics, medicines, food spices, etc. The extraction method of existing tea tree essential oil mainly contains: [0003] 1. Fat adsorption metho...

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Problems solved by technology

[0003] 1. Fat adsorption method, which uses oil to absorb the essential oil in tea tree. Although the process is simple, it is difficult to separate the essential oil and oil in the follow-up

[0004] 2. Supercritical extraction method, using supercritical carbon dioxide fluid extraction to obtain tea tree essential oil, this method has the advantages of high yield and high product quality; but because supercritical carbon dioxide fluid is too soluble, non-essential oil components in tea tree are also extracted out, and the water in the tea tree is not easy to separate, making the tea tree essential oil easy to grow mold during storage, which limits the application range of the obtained product

This method has simple equipment, easy operation, low cost, large output, and no pollution. However, after a long period of heating and distillation, the essential oil is likely to cause thermal decomposition of heat-sensitive components and hydrolysis of easy-to-hydrolyze components, resulting in the loss of active components in the essential oil and aromatic odor. changes, thereby reducing the use value as a spice

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